The blower motor is the
fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected
. Adjusting the fan speed sends a signal through a resistor to the blower motor to either pick up the pace or slow it down.
Will a car run without a blower motor?
Your car's blower motor is not only necessary for the operation of your air conditioner. Without a functioning blower motor your engine
runs the risk of overheating
. … Start car and see if blower motor works.
What are the symptoms of a bad blower motor?
- Weak airflow. This is one of the first signs of a bad blower motor that people tend to notice. …
- Noises. Have you noticed any unusual noises coming from your vehicle's HVAC system? …
- Smoke or smells.
Does a car need a blower motor?
The blower doesn't heat or cool the air. It is indeed a critical car part that enables your car to do so. Your vehicle's blower motor
has the responsibility of pushing out the heat or cooled air
though the vehicle's HVAC vents.
What happens if the blower motor goes out?
No air from the vents
If the heater blower motor burns out or short circuits,
it will not function
, and therefore will not be able to produce any airflow for the system. The blower motor will usually have to be replaced in order to restore proper operation to the system.
What can cause a blower motor to stop working?
In a situation where the motor doesn't work on any speed, the most likely causes are:
a blown power supply fuse
, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely.
How long does a blower motor last?
The blower motor in your home or office should last anywhere from
10 to 20 years
. Modern sealed bearings and sealed bushings can push the lifespan to its maximum of 20 years.
How much does it cost to replace a blower motor in a car?
In most instances this repair is on the relatively inexpensive side. A new blower motor will run
between $50 and $100
. Most blower motors sit in the dash underneath the glove box, and are accessible for replacement. Installation will run in the range of $80–$100.
How long does it take to replace a blower motor in a car?
How Long Does It Take To Replace A Blower Motor In A Car? It generally takes
about 4 hours
for an experienced technician to do a blower motor replacement. If you are doing it on your own in your garage with common tools, you can expect the job to take 6 hours or more.
Can you drive with a bad motor blower?
A bad heater blower motor will not affect the safety of your car, with the possible exception of you
not
being able to clear the windshield of snow, ice, or condensation if the defrosters don't work. But you won't be comfortable inside your car, especially during the cold of winter and the heat of summer.
Can a blower motor be repaired?
Blower Motor Replacement: When Good Parts Go Bad. … There are a number of things that can go wrong with your heating system, but if the air stops blowing altogether and the same is true on cold air settings, a blower motor replacement is likely in order. The good news is that it's
a fairly straight forward repair
.
Why is my car blower motor so loud?
Loud noises you hear when your car's heater or air conditioner are on typically indicate a blower motor issue. The good news is that a blower motor problem like this can be the
result of something as simple to fix as debris or trash that got caught in it
.
Do blower motors get weak?
Weak airflow
is a sign of blower motor failure. This part wears out eventually, meaning its fans can no longer push adequate amount of air out the vents or through window defrosters. In other situations, air may not blow out on some speed settings at all. Ask your mechanic to check it out.
What does a bad blower motor sound like?
A working blower motor will operate smoothly and inaudibly. A defective blower motor will make a continuous sound noticeable by the passengers in the vehicle. It can manifest as
a knocking, whirring, clunking, vibrating, squealing, or whining noise
that persists until the blower motor is replaced.
What happens when a blower motor relay goes bad?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may
cause the blower motor fuse to blow
. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
All furnaces are equipped with a
reset button
. They are generally red or yellow and are located inside the blower compartment. The reset button is a safety feature that will shut down the furnace when a problem is detected, often a hot or overheating furnace, before it trips the circuit breaker.
